arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0901.4299math.COmath.GR
收藏

无三角形三角剖分

Triangle-Free Triangulations

Ron M. Adin, Marcelo Firer, Yuval Roichman

摘要:

研究了凸多边形着色无内三角形三角剖分的翻转操作。证明了仿射外尔群$\widetilde{C}_n$通过色翻转作用于这些三角剖分上,并且所得到的色翻转图与$\widetilde{C}_n$上弱序的下区间密切相关.然后应用该阶的晶格性质来计算直径。

英文摘要:

The flip operation on colored inner-triangle-free triangulations of a convex polygon is studied. It is shown that the affine Weyl group $\widetilde{C}_n$ acts transitively on these triangulations by colored flips, and that the resulting colored flip graph is closely related to a lower interval in the weak order on $\widetilde{C}_n$. Lattice properties of this order are then applied to compute the diameter.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑